top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

There is a bag which have 21 blue balls and 23 red balls..........What is the color of the sole marble left in the bag ?

+1 vote
2,451 views

There is a bag which have 21 blue balls and 23 red balls. You also have 22 red balls outside the bag.

Randomly remove two balls from the bag.
* If they are of different colors, put the blue one back in the bag.
* If they are the same color, take them out and put a red marble back in the bag.

Repeat this until only one marble remains in the bag.

What is the color of the sole marble left in the bag ?

posted Oct 26, 2017 by Brijesh Talwar

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

2 Answers (Check Answer ▼)





Similar Puzzles
0 votes
What is the color of the last marble left in the bag?

A bag contains 80 blue marbles and 70 red marbles. Next to this bag is a pile of blue and red marbles. We take the marbles out of the bag in groups of two, with the following rules:

If the two marbles are of the same color, we put them in the pile and place a blue marble back into the bag.
If the two marbles are of different colors, we put them in the pile and place a red marble back into the bag.

What is the color of the last marble left in the bag?

0 votes
In a bag total of blue and red balls is equal to six times the yellow balls and blue balls are two-fifth of total.......

In a bag total of blue and red balls is equal to six times the yellow balls and blue balls are two-fifth of total of yellow and red balls.
If 44 blue balls are there, then how many balls are there in the bag?

+1 vote
Re-arrange the red and blue balls in the check board in such a way that no two balls of same color fall in the same row.

Re-arrange the red and blue balls in the check board in such a way that no two balls of same color falls in the same row horizontally, vertically or diagonally.

enter image description here

+1 vote
What is the least number of balls to be picked from a bag of 64 balls (eight of each color) to select 3 red balls?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

0 votes
A bag contain 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is...........

A bag contain 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is four time that of a red ball, then find the number of blue balls in the bag.

...